CSD95481RWJT [TI]
采用业界通用封装的 60A 同步降压 NexFET™ 智能功率级 | RWJ | 41 | -55 to 150;型号: | CSD95481RWJT |
厂家: | TEXAS INSTRUMENTS |
描述: | 采用业界通用封装的 60A 同步降压 NexFET™ 智能功率级 | RWJ | 41 | -55 to 150 |
文件: | 总15页 (文件大小:870K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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CSD95481RWJ
SLPS674 –JUNE 2017
CSD95481RWJ Synchronous Buck NexFET™ Smart Power Stage
1 Features
2 Applications
1
•
•
•
•
•
60-A Continuous Operating Current Capability
Over 95% System Efficiency at 30 A
High-Frequency Operation (up to 1.25 MHz)
Diode Emulation Function
•
Multiphase Synchronous Buck Converters
–
–
High-Frequency Applications
High-Current, Low-Duty Cycle Applications
•
•
•
POL DC-DC Converters
Temperature Compensated Bi-Directional Current
Sense
Memory and Graphic Cards
Desktop and Server VR12.x / VR13.x V-Core
Synchronous Buck Converters
•
•
•
•
•
•
Analog Temperature Output
Fault Monitoring
3 Description
3.3-V and 5-V PWM Signal Compatible
Tri-State PWM Input
The CSD95481RWJ NexFET™ power stage is a
highly optimized design for use in a high-power, high-
density synchronous buck converter. This product
integrates the driver IC and power MOSFETs to
complete the power stage switching function. This
combination produces high-current, high-efficiency,
and high-speed switching capability in a small 5-mm
× 6-mm outline package. It also integrates the
accurate current sensing and temperature sensing
functionality to simplify system design and improve
accuracy. In addition, the PCB footprint has been
optimized to help reduce design time and simplify the
completion of the overall system design.
Integrated Bootstrap Switch
Optimized Dead Time for Shoot-Through
Protection
•
•
•
•
•
•
High-Density QFN 5-mm × 6-mm Footprint
Ultra-Low-Inductance Package
System Optimized PCB Footprint
Thermally Enhanced Topside Cooling
RoHS Compliant – Lead-Free Terminal Plating
Halogen Free
Device Information(1)
DEVICE
MEDIA
QTY
PACKAGE
SHIP
Application Diagram
CSD95481RWJ
13-Inch Reel
2500
QFN
Tape
and
Reel
5.00-mm × 6.00-mm
Package
P12V
CSD95481RWJT 7-Inch Reel
250
TPS53679
BOOT BOOT_R
AVSP
AVSN
VIN
PWM
CSD95481RWJ
VOS
PWM1
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
ASKIP#
EN/FCCM
VDD
P5V
VSW
TAO
LOAD
PVDD
LSET PGND IOUT REFIN
ACSP1
TSEN
Typical Power Stage Efficiency and Power Loss
100
90
80
70
60
50
40
30
14
12
10
8
P12V
P5V
BOOT BOOT_R
CSD95481RWJ
VIN
PWM
VOS
APWM6
EN/FCCM
VDD
VREF
3.3 V
VSW
TAO
ADDR
PVDD
LSET PGND IOUT REFIN
V3P3
ACSP6
VREF
P12V
VIN_CSNIN
6
CSPIN
BVSN
BVSP
VCCIO
BEN_VCCIO
4
P12V
P5V
SCLK
SDIO
BOOT BOOT_R
CSD95492QVM
VIN
PWM
SALERT#
PIN_ALT#
VR_HOT#
SMB_CLK
SMB_ALERT
#
VOS
BPWM1
BSKIP#
2
EN/FCCM
VDD
VSW
TAO
LOAD
PVDD
0
LSET PGND IOUT REFIN
SMB_DIO
AVR_RDY
BVR_RDY
AVR_EN
VR_FAULT#
RESET#
0
10
20
30
40
50
60
Output Current (A)
D000
BCSP1
AGND
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
CSD95481RWJ
SLPS674 –JUNE 2017
www.ti.com
Table of Contents
1
2
3
4
5
6
Features.................................................................. 1
8
Device and Documentation Support.................... 7
8.1 Receiving Notification of Documentation Updates.... 7
8.2 Community Resources.............................................. 7
8.3 Trademarks............................................................... 7
8.4 Electrostatic Discharge Caution................................ 7
8.5 Glossary.................................................................... 7
Applications ........................................................... 1
Description ............................................................. 1
Revision History..................................................... 2
Pin Configuration and Functions......................... 3
Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information.................................................. 5
Application Schematic .......................................... 6
9
Mechanical, Packaging, and Orderable
Information ............................................................. 8
9.1 Mechanical Drawing.................................................. 8
9.2 Recommended PCB Land Pattern............................ 9
9.3 Recommended Stencil Opening ............................. 10
7
4 Revision History
DATE
REVISION
NOTES
June 2017
*
Initial release.
2
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SLPS674 –JUNE 2017
5 Pin Configuration and Functions
Top View
39 38 37 36 35 34 33 32 31 30
VOS
AGND
VDD
1
2
3
4
5
6
VIN
29
28 VIN
27 VIN
26 VIN
25 VIN
VIN
40
PVDD
PGND
NC
41
PGND
24
23 PGND
22 PGND
21 PGND
PGND
PGND
PGND
7
8
9
PGND
PGND
20
10 11 12 13 14 15 16 17 18 19
Pin Functions
PIN
DESCRIPTION
NAME
VOS
NO.
1
Output voltage sensing pin for the internal current sensing circuitry.
This pin is internally connected to PGND.
AGND
VDD
2
3
Supply voltage for internal circuitry. This pin should be bypassed directly to pin 2.
Supply voltage for gate drivers. This pin should be bypassed to PGND.
Power ground.
PVDD
PGND
NC
4
5
6
Not connected. This pin needs to be left floating in application.
Power ground.
PGND
VSW
PGND
VIN
7-9
10-19
20-24
25-30
31
Phase node connecting the HS MOSFET source and LS MOSFET drain – pin connection to the output inductor.
Power ground.
Input voltage pin. Connect input capacitors close to this pin.
Not connected. This pin needs to be left floating in application.
Return path for HS gate driver. It is connected to VSW internally.
NC
BOOTR
32
Bootstrap capacitor connection. Connect a minimum 0.1-µF, 16-V, X5R ceramic capacitor from BOOT to
BOOTR pins. The bootstrap capacitor provides the charge to turn on the control FET. The bootstrap diode is
integrated.
BOOT
PWM
33
34
Tri-state input from external controller. Logic low sets control FET gate low and sync FET gate high. Logic high
sets control FET gate high and sync FET gate low. Both MOSFET gates are set low if PWM stays in Hi-Z for
greater than the tri-state shutdown hold-off time (T3HT).
This dual function pin either enables the diode emulation function or can be used as a simple enable for the
device. When this pin is driven into the tri-state window and held there for more than the tri-state hold-off time,
Diode Emulation Mode is enabled for sync FET. When the pin is high, device operates in Forced Continuous
Conduction Mode. When the pin is low, both FETs are held off. An internal resistor pulls this pin low if left
floating.
EN/FCCM
35
Temperature amplifier output. Reports a voltage proportional to the IC temperature. An ORing diode is integrated
in the IC. When used in multiphase application, a single wire can be used to connect the TAO pins of all the ICs.
Only the highest temperature will be reported. TAO will be pulled up to 3.3 V if thermal shutdown LSOC or HSS
detection circuit is tripped.
TAO/FLT
36
LSET
IOUT
REFIN
PGND
NC
37
38
39
40
41
A resistor from this pin to PGND pin sets the inductor value for the internal current sensing circuitry.
Output of current sensing amplifier. V(IOUT) – V(REFIN) is proportional to the phase current.
External reference voltage input for current sensing amplifier.
Power ground.
Not connected. This pin needs to be left floating in application.
Copyright © 2017, Texas Instruments Incorporated
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SLPS674 –JUNE 2017
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6 Specifications
6.1 Absolute Maximum Ratings
TA = 25°C (unless otherwise stated)(1)
MIN
–0.3
–0.3
MAX
UNIT
V
VIN to PGND
20
VIN to VSW
20
V
VIN to VSW (10 ns)
VSW to PGND
23
V
–0.3
–7
20
V
VSW to PGND (10 ns)
VDD to PGND
23
V
–0.3
–0.3
–0.3
–0.3
–0.3
–0.3
–0.3
–55
–55
7
V
PVDD to PGND
7
VDD + 0.3
7
V
EN/FCCM, TAO/FLT, LSET to PGND
IOUT, VOS, PWM to PGND
REFIN
V
V
3.6
V
BOOT to BOOTR(2)
VDD + 0.3
30
V
BOOT to PGND
V
TJ
Operating junction temperature
Storage temperature
150
°C
°C
Tstg
150
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated in the Recommended Operating
Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) Should not exceed 7 V.
6.2 ESD Ratings
VALUE
±2000
±500
UNIT
Human-body model (HBM)
V(ESD)
Electrostatic discharge
V
Charged-device model (CDM)
6.3 Recommended Operating Conditions
TA = 25°C (unless otherwise stated)
MIN
4.5
4.5
4.5
MAX
5.5
5.5
16
UNIT
VDD
Driver supply voltage
Gate drive voltage
Input supply voltage(1)
Output voltage
V
V
V
V
V
A
PVDD
VIN
VOUT
5.5
PWM to PGND
VDD + 0.3
IOUT
Continuous output current
VIN = 12 V, VDD = 5 V, PVDD = 5 V,
VOUT = 1.2 V,
60
90
IOUT-PK Peak output current(3)
A
ƒSW = 500 kHz(2)
CBST = 0.1 µF (min), VOUT = 2.5 V
(max)
ƒSW
Switching frequency
1250
85%
kHz
On-time duty cycle
ƒSW = 1 MHz
Minimum PWM on-time
Operating junction temperature
20
ns
°C
–40
125
(1) Operating at high VIN can create excessive AC voltage overshoots on the switch node (VSW) during MOSFET switching transients. For
reliable operation, the switch node (VSW) to ground voltage must remain at or below the Absolute Maximum Ratings.
(2) Measurement made with six 10-µF (TDK C3216X7R1C106KT or equivalent) ceramic capacitors across VIN to PGND pins.
(3) System conditions as defined in Note 2. Peak output current is applied for tp = 50 µs.
4
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SLPS674 –JUNE 2017
6.4 Thermal Information
TA = 25°C (unless otherwise stated)
THERMAL METRIC
MIN
TYP
MAX UNIT
°C/W
θJC
θJB
ΨJT
Thermal resistance, junction-to-case (top of package)
Thermal resistance, junction-to-board(1)
7.4
2.2
0.9
°C/W
Junction-to-top characterization parameter
°C/W
(1) θJB is determined with the device mounted on a 1-in2 (6.45-cm2), 2-oz (0.071-mm) thick Cu pad on a 1.5-in × 1.5-in, 0.06-in (1.52-mm)
thick FR4 board based on hottest board temperature within 1 mm of the package.
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SLPS674 –JUNE 2017
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7 Application Schematic
P12V
P5V
TPS53679
BOOT BOOT_R
AVSP
AVSN
VIN
VOS
PWM
CSD95481RWJ
PWM1
ASKIP#
EN/FCCM
VDD
VSW
TAO
LOAD
PVDD
LSET PGND IOUT REFIN
ACSP1
TSEN
P12V
P5V
BOOT BOOT_R
VIN
VOS
PWM
APWM6
CSD95481RWJ
EN/FCCM
VDD
VREF
3.3 V
VSW
TAO
ADDR
PVDD
LSET PGND IOUT REFIN
V3P3
ACSP6
VREF
P12V
VIN_CSNIN
CSPIN
BVSN
BVSP
VCCIO
BEN_VCCIO
P12V
P5V
SCLK
SDIO
BOOT BOOT_R
VIN
SALERT#
PIN_ALT#
VR_HOT#
SMB_CLK
SMB_ALERT
#
SMB_DIO
AVR_RDY
BVR_RDY
AVR_EN
VR_FAULT#
RESET#
VOS
PWM
CSD95492QVM
BPWM1
BSKIP#
EN/FCCM
VDD
VSW
TAO
LOAD
PVDD
LSET PGND IOUT REFIN
BCSP1
AGND
Copyright © 2016, Texas Instruments Incorporated
Figure 1. Application Schematic
Note: The schematic in Figure 1 is a conceptual drawing only. Actual designs may require additional components
not shown.
6
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SLPS674 –JUNE 2017
8 Device and Documentation Support
8.1 Receiving Notification of Documentation Updates
To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper
right corner, click on Alert me to register and receive a weekly digest of any product information that has
changed. For change details, review the revision history included in any revised document.
8.2 Community Resources
The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective
contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of
Use.
TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration
among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help
solve problems with fellow engineers.
Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and
contact information for technical support.
8.3 Trademarks
NexFET, E2E are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.
8.4 Electrostatic Discharge Caution
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
8.5 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.
Copyright © 2017, Texas Instruments Incorporated
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SLPS674 –JUNE 2017
www.ti.com
9 Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
9.1 Mechanical Drawing
5.1
4.9
A
B
PIN 1 INDEX AREA
6.1
5.9
C
1.05 MAX
SEATING PLANE
0.08
(0.203) TYP
0.05
0.00
0.3
0.2
9X 0.45
10X
0.13 TYP
10
19
0.3
0.2
13X
2.6 0.1
2.2 0.1
9
20
2.05
1.95
7
6
10X 0.45
0.8 0.1
0.4 0.1
0.1 0.1
R0.05
TYP
24
25
41
0.000
PKG
0.3 0.1
0.45
0.35
16X
40
2.25 0.1
2.275
2.175
29
1
PIN 1 ID
39
30
(45 X0.3)
0.3
0.2
14X 0.45
16X
0.1
C A B
0.05
4221590/C 01/2017
1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning
and tolerancing per ASME Y14.5M.
2. This drawing is subject to change without notice.
3. The package thermal pads must be soldered to the printed circuit board for optimal thermal and mechanical
performance.
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SLPS674 –JUNE 2017
9.2 Recommended PCB Land Pattern
METAL UNDER
SOLDER MASK
TYP
16X (0.6)
39
30
(2.9)
16X (0.25)
1
(2.25)
(2.175)
(2.05)
(2.25)
29
SOLDER MASK
OPENING, TYP
40
(1.275)
14X (0.45)
(0.5)
(0.3)
25
24
(0.3)
(0.025)
6
(0.1)
0.000 PKG
(0.3)
41
(0.4)
(R0.05) TYP
5X (1.15)
(0.8)
7
(1.05)
19X (0.45)
(
0.2) VIA
TYP
9
5X (2)
(2.05)
20
(2.2)
(0.05) MIN
TYP
(2.6)
(2.75) TYP
(3.2) TYP
19
10
PKG
20X (0.25)
1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning
and tolerancing per ASME Y14.5M.
2. This drawing is subject to change without notice.
3. This package is designed to be soldered to thermal pads on the board. For more information, see QFN/SON
PCB Attachment (SLUA271).
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SLPS674 –JUNE 2017
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9.3 Recommended Stencil Opening
29X (0.6)
39
30
29X (0.25)
1
EXPOSED
METAL
4X (2.245)
29
24X (0.45)
4X (1.375)
4X (1.175)
40
EXPOSED
METAL
SOLDER MASK
OPENING
TYP
25
24
(0.375)
4X (0.305)
(0.025)
6
(0.1)
(0.4)
0.000 PKG
3X (0.13)
(0.25)
41
(0.84)
(1.05)
7
9
3X (1.05)
3X (1.25)
(R0.05) TYP
20
EXPOSED
METAL
4X (2.17)
(2.6)
(2.75) TYP
METAL UNDER
SOLDER MASK
TYP
10
(3.2) TYP
19
10X (0.25)
9X (0.45)
SOLDER PAST EXAMPLE
BASED ON 0.125 mm THICK STENCIL
1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning
and tolerancing per ASME Y14.5M.
2. This drawing is subject to change without notice.
3. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525
may have alternate design recommendations.
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PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package
Eco Plan
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
2500
250
(1)
(2)
(3)
(4/5)
(6)
CSD95481RWJ
CSD95481RWJT
ACTIVE
VQFN-CLIP
VQFN-CLIP
RWJ
41
41
RoHS-Exempt
& Green
SN
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
-55 to 150
-55 to 150
95481RWJ
95481RWJ
ACTIVE
RWJ
RoHS-Exempt
& Green
SN
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two
lines if the finish value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
5-Jan-2021
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
CSD95481RWJ
CSD95481RWJT
VQFN-
CLIP
RWJ
RWJ
41
41
2500
250
330.0
12.4
5.3
6.3
1.2
8.0
12.0
Q1
VQFN-
CLIP
180.0
12.4
5.3
6.3
1.2
8.0
12.0
Q1
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
5-Jan-2021
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
CSD95481RWJ
CSD95481RWJT
VQFN-CLIP
VQFN-CLIP
RWJ
RWJ
41
41
2500
250
367.0
213.0
367.0
191.0
38.0
35.0
Pack Materials-Page 2
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